mode 6 notes - CSC 211 NOTES W i nt e r 2 0 1 1 A mb e r S...

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1 CSC 211 NOTES Winter 2011: Amber Settle Module 6: File I/O File input/output Obtaining information from the keyboard and displaying information to standard output has some limitations. Some drawbacks include: It is inefficient (and tiring and error prone) to type a large amount of data into a program via the keyboard Displaying large amounts of information to the screen is overwhelming and cumbersome to read The alternative is to use files for input and output . Some advantages include: It allows you to prepare data beforehand on which you will run your program. You can use the same file over and over again to test your program without having to retype. Printing information from a file is also easier. File I/O in Java is a five-step process: 1. Import the necessary classes from the packages java.util and java.io into the program 2. Modify the header for main slightly 3. Create and associate objects with the input/output sources 4. Use the appropriate methods
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